Latest version 1.0.7 of mpich2 is installed in HPC cluster. To use MPICH2, you must ensure that your environment is set up properly so that the correct MPICH2 installation is used when compiling or running MPI-enabled programs. An easy way to do this is by using the following command:

  module load mpich2

This command should be typed to the shell if the subsequent use of MPI will be interactive. It should be placed in PBS scripts for MPI-enabled jobs that will be run via PBS.

Note that the mpi module is currently is not the default MPI library and is loaded into the environment automatically for both interactive shells and PBS batch jobs, so that the explicit loading of the mpi module is necessary. Note that it is made with the pgi compilers.